Volunteers and church members will meet at the Corinth Baptist Church located at 1350 Corinth Road in Darden, Tennessee on Saturday night beginning at 10 p.m. to read through the names of the missing children and pray for the children and their families at Midnight.
Bobo was added to the list after she reported missing from her home outside Parsons in rural Decatur County in April.
Her disappearance remains under investigation.
The missing woman turned 21 on October 12. Her family held a birthday observance and a local school released balloons in her honor.
Bobo is described as five foot, three inches tall, weighing 110 pounds with blue eyes and shoulder-length blonde hair.
She was last seen wearing a pink shirt, blue jeans and black flip flops.
An $85,000 reward is being offered for information leading to her location.
Anyone with information is urged to contact the TBI at 1-800-TBI-FIND.